Class DependendSymbol

object --+    
         |    
    Symbol --+
             |
            DependendSymbol

Known Subclasses:

• Abs_Symbol
• , Acos_Symbol
• , Acosh_Symbol
• , Add_Symbol
• , Asin_Symbol
• , Asinh_Symbol
• , Atan_Symbol
• , Atanh_Symbol
• , Cos_Symbol
• , Cosh_Symbol
• , Exp_Symbol
• , GeneralTensorProduct_Symbol
• , GeneralTensorTransposedProduct_Symbol
• , GeneralTransposedTensorProduct_Symbol
• , GetSlice_Symbol
• , Grad_Symbol
• , Integrate_Symbol
• , Interpolate_Symbol
• , Inverse_Symbol
• , Log_Symbol
• , Maxval_Symbol
• , Minval_Symbol
• , Mult_Symbol
• , Power_Symbol
• , Quotient_Symbol
• , Sin_Symbol
• , Sinh_Symbol
• , Sqrt_Symbol
• , SwapAxes_Symbol
• , Tan_Symbol
• , Tanh_Symbol
• , Trace_Symbol
• , Transpose_Symbol
• , WhereNegative_Symbol
• , WherePositive_Symbol
• , WhereZero_Symbol

DependendSymbol extents Symbol by modifying the == operator to allow two instances to be equal. Two DependendSymbol s are equal if they have the same shape, the same arguments and one of them has an unspecified spatial dimension or the spatial dimension is identical.

Example:

u1=Symbol(shape=(3,4),dim=2,args=[4.])
u2=Symbol(shape=(3,4),dim=2,args=[4.])
print u1==u2
False

but:

u1=DependendSymbol(shape=(3,4),dim=2,args=[4.])
u2=DependendSymbol(shape=(3,4),dim=2,args=[4.])
u3=DependendSymbol(shape=(2,),dim=2,args=[4.])
print u1==u2, u1==u3
True False